func fixupPatchForNodeStatusAddresses()

in node/util/status.go [87:134]

• 26 lines of code
• 6 McCabe index (conditional complexity)

func fixupPatchForNodeStatusAddresses(patchBytes []byte, addresses []v1.NodeAddress) ([]byte, error) {
	// Given patchBytes='{"status": {"conditions": [ ... ], "phase": ...}}' and
	// addresses=[{"type": "InternalIP", "address": "10.0.0.1"}], we need to generate:
	//
	//   {
	//     "status": {
	//       "conditions": [ ... ],
	//       "phase": ...,
	//       "addresses": [
	//         {
	//           "type": "InternalIP",
	//           "address": "10.0.0.1"
	//         },
	//         {
	//           "$patch": "replace"
	//         }
	//       ]
	//     }
	//   }

	var patchMap map[string]interface{}
	if err := json.Unmarshal(patchBytes, &patchMap); err != nil {
		return nil, err
	}

	addrBytes, err := json.Marshal(addresses)
	if err != nil {
		return nil, err
	}
	var addrArray []interface{}
	if err := json.Unmarshal(addrBytes, &addrArray); err != nil {
		return nil, err
	}
	addrArray = append(addrArray, map[string]interface{}{"$patch": "replace"})

	status := patchMap["status"]
	if status == nil {
		status = map[string]interface{}{}
		patchMap["status"] = status
	}
	statusMap, ok := status.(map[string]interface{})
	if !ok {
		return nil, fmt.Errorf("unexpected data in patch")
	}
	statusMap["addresses"] = addrArray

	return json.Marshal(patchMap)
}